<template>
	<view class="navbar">
		<view class="navbar-fixed">
			<!-- 状态栏 -->
			<view :style="{height:statusBarHeight+'px'}"></view>
			<!-- 导航栏内容 -->
			<view class="navbar-content" :class="{search:isSearch}" :style="{height:navBarHeight+'px',width: windowWidth + 'px'}" @click.stop="open">
				<view v-if="isSearch" class="navbar-content__search-icons" @click="back">
					<uni-icons type="back" size="22" color="#fff"></uni-icons>
				</view>
				<view v-if="!isSearch" class="navbar-search">
					<!-- 非搜索页显示 -->
					<view class="navbar-search-icon">
						<uni-icons type="search" size="16" color="#999"></uni-icons>
					</view>
					<view class="navbar-search-text">uni-app、vue</view>
				</view>
				
				<view v-else="isSearch" class="navbar-search">
					<!-- 搜索页显示 -->
					<input class="navbar-search-text" type="text" v-model="val" value="" @input="inputChange" placeholder="请输入您要搜索的内容">
				</view>
				
			</view>
		</view>
		<view :style="{height: statusBarHeight + navBarHeight + 'px'}"></view>
	</view>
</template>

<script>
	export default {
		props:{
			value:{
				type: [String,Number],
				default: ""
			},
			isSearch: {
				type: Boolean,
				default: false
			}
		},
		watch: {
			value(newVale){
				this.val = newVale
			}
		},
		data() {
			return {
				statusBarHeight: 20,
				navBarHeight: 45,
				windowWidth: 375,
				val: '',
			};
		},
		created(){
			//获取手机系统信息(同步)
			const info = uni.getSystemInfoSync();
			//设置状态栏高度
			this.statusBarHeight = info.statusBarHeight
			
			this.windowWidth = info.windowWidth
			
			//使用条件编译,除了h5、app、mp-alipay除外才使用
			//#ifndef H5 || APP-PLUS || MP-ALIPAY
			//获取微信胶囊的位置
			const menuButtonInfo = uni.getMenuButtonBoundingClientRect()
			//(胶囊底部-状态栏的高度) + (胶囊顶部高度 - 状态栏的高度)=导航栏的高度
			this.navBarHeight = (menuButtonInfo.bottom - info.statusBarHeight) + (menuButtonInfo.top - info.statusBarHeight) + 4
			
			this.windowWidth = menuButtonInfo.left;
			//#endif
		},
		methods: {
			back(){
				uni.switchTab({
					url: '/pages/tabbar/index/index'
				})
			},
			open(){
				if(this.isSearch){
					return
				}
				uni.navigateTo({
					url: "/pages/home-search/home-search"
				})
			},
			inputChange(e){
				const {value} = e.detail
				/* console.log(value)
				console.log("val:"+this.val) */
				this.$emit('input',value)
			}
		}
	}
</script>

<style lang="scss">
	@import '../../common/css/icons.css';
	.navbar {
		.navbar-fixed {
			width: 100%;
			position: fixed;
			top: 0;
			left: 0;
			z-index: 99;
			background-color: $mk-base-color;
			.navbar-content {
				// height: 45px;
				padding: 0 15px;
				box-sizing: border-box; //盒内显示
				display: flex;
				justify-content: center;
				align-items: center;
				.navbar-search {
					display: flex;
					align-items: center;
					padding: 0 10px;
					height: 30px;
					width: 100%;
					border-radius: 30px;
					background-color: #FFFFFF;

					.navbar-search-icon {		
						margin-right: 10px;
					}

					.navbar-search-text {
						width: 100%;
						font-size: 14px;
						color: #999999;
					}
				}
				
				&.search {
					padding-left: 0;
					.navbar-content__search-icons{
						margin-left: 10px;
						margin-right: 10px;
						
					}
					.navbar-search {
						border-radius: 5px;
					}
				}

			}
		}
	}
</style>
